.bottom {
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 50px;
  background-color: #fff;
  display: flex;
  justify-content: space-around;
  align-items: center;
  a {
    text-decoration: none;
    color: #000;
  }
  /* 需求选择边框样式 */
  .active {
    // border: 2px solid #ff8200;
    color: #ff8200;
  }
}
